CN207572126U - Logging cable - Google Patents

Abstract

This application provides a kind of logging cable, logging cable includes successively from outside to inside：Sheathed part, sheath；Sheathed part wrap jacket；Multiple conductors and multiple optical fiber are provided in sheath, multiple conductors are arranged along the internal perisporium of sheath；So as to it is only capable of wearing an optical fiber between the outer wall of adjacent conductor and the inner wall of sheath；Multiple conductors contact with each other, and each outer wall of conductor and the inner wall of sheath offset；Sheathed part is two layers, and two layers of sheathed part is followed successively by from outside to inside：Outer layer sheathed part and internal layer sheathed part；Outer layer sheathed part is coiled by tiny steel wire carries out the twisted of multiply again after the sub-thread of first diameter, second diameter is less than first diameter.The application embodiment provides a kind of logging cable, can improve the tensile strength of unit length, so as to which logging cable be enable to bear larger pulling force.

Description

Logging cable

Technical field

This application involves petroleum well logging technology field more particularly to a kind of logging cables.

Background technology

Logging cable can be used for log data being attached and transmitted between ground system and underground equipment.It is led It acts on：When load-bearing, second is that transmission log data and conduction.

Since the tensile strength of conductor is more than the tensile strength of optical fiber unit length.And the cross-sectional area of conducting wire Bigger, the tensile strength of conductor is bigger.So in the logging cable that there is same cross-sectional area at two, conducting wire Cross-sectional area ratio shared in the cross-sectional area of logging cable is higher, and the tensile strength of logging cable is stronger, more can load-bearing. But in the prior art, such as the logging cable that Chinese utility model patent CN204632444U is disclosed, including compound cable core, The compound cable core is made of optical fiber, conducting wire, capillary and shielding protection layer.Capillary is located at the center of compound cable core. Conducting wire and optical fiber are distributed on the outside of capillary.The cross-sectional area of wherein conducting wire is equal with the cross-sectional area of optical fiber, and conducting wire Cross-sectional area ratio shared in the cross-sectional area of logging cable is less than 50%, so the tensile strength of the logging cable has Limit, load-bearing are smaller.

Utility model content

In view of this, the application embodiment provides a kind of logging cable, and the tension that can improve unit length is strong Degree, so as to which logging cable be enable to bear larger pulling force.

To achieve the above object, this application provides following technical solutions：A kind of logging cable, the logging cable from It is outer to include successively in：Sheathed part, sheath；The sheathed part wraps up the sheath；Be provided in the sheath multiple conductors and Multiple optical fiber, multiple conductors are arranged along the internal perisporium of the sheath；So that the outer wall of the adjacent conductor and the sheath Inner wall between be only capable of wearing the optical fiber.

As a preferred embodiment, multiple conductors contact with each other, and the outer wall of each conductor and institute The inner wall for stating sheath offsets.

As a preferred embodiment, the gap between the optical fiber, the conductor is filled with insulator.

As a preferred embodiment, the material of the insulator is epoxy resin.

As a preferred embodiment, the material of the sheath is the adhesive tape containing semi-conducting material.

As a preferred embodiment, the sheathed part is two layers；Two layers of sheathed part is followed successively by from outside to inside： Outer layer sheathed part and internal layer sheathed part.

As a preferred embodiment, after the outer layer sheathed part is coiled into the sub-thread of first diameter by tiny steel wire The twisted of multiply is carried out again, and the outer layer sheathed part wraps up the internal layer sheathed part.

As a preferred embodiment, after the internal layer sheathed part is coiled into the sub-thread of second diameter by tiny steel wire The twisted of multiply is carried out again so that the internal layer sheathed part wraps up the sheath.

As a preferred embodiment, after the outer layer sheathed part is coiled into the sub-thread of first diameter by tiny steel wire The twisted of multiply is carried out again, and second diameter is less than first diameter.

As a preferred embodiment, the gap between the outer layer sheathed part and internal layer sheathed part is filled with polymerization Object.

As a preferred embodiment, the material of the polymer is fiber.

As a preferred embodiment, it includes：Preventing rubber layer, the preventing rubber layer wrap up the armouring Portion.

By above technical solution, the logging cable described in the application embodiment is and more by setting multiple conductors A conductor is arranged along the internal perisporium of sheath；So as to be only capable of wearing an optical fiber between the outer wall of adjacent conductor and the inner wall of sheath, Space in such sheath is most of occupied by conductor, and the cross-sectional area sum of multiple conductors reaches maximization.So it leads The cross-sectional area of line ratio shared in the cross-sectional area of logging cable is more than 50%, so as to improve the tension of logging cable Intensity.So the application embodiment provides a kind of logging cable, the tensile strength of unit length can be improved, so as to make Logging cable can bear larger pulling force.

Description of the drawings

Attached drawing described here is only used for task of explanation, and is not intended to limit model disclosed in the present application in any way It encloses.In addition, shape and proportional sizes of each component in figure etc. are only schematical, the understanding to the application is used to help, and It is not the specific shape and proportional sizes for limiting each component of the application.Those skilled in the art, can under teachings of the present application Implement the application to select various possible shapes and proportional sizes as the case may be.In the accompanying drawings：

Fig. 1 is the structure diagram of the logging cable of the application embodiment.

Specific embodiment

Below in conjunction with the attached drawing in the application embodiment, the technical solution in the application embodiment is carried out clear Chu is fully described by, it is clear that described embodiment is only the reality of a part of embodiment of the application rather than whole Apply mode.Based on the embodiment in the application, those of ordinary skill in the art institute without creative efforts The every other embodiment obtained, shall fall in the protection scope of this application.

Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the application The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein The purpose of the embodiment of body, it is not intended that in limitation the application.

It please refers to Fig.1.A kind of logging cable that present embodiment is provided, the logging cable wrap successively from outside to inside It includes：Sheathed part, sheath 11；The sheathed part wraps up the sheath 11；Multiple conductors 19 and multiple are provided in the sheath 11 Optical fiber 27, multiple conductors 19 are arranged along the internal perisporium of the sheath 11；So that the outer wall of the adjacent conductor 19 with it is described It is only capable of wearing the optical fiber 27 between the inner wall of sheath 11.

By the logging cable described in the application embodiment it can be seen from above scheme by setting multiple conductors 19, and Multiple conductors 19 are arranged along the internal perisporium of sheath 11；So as to it is only capable of wearing between the outer wall of adjacent conductor 19 and the inner wall of sheath 11 One optical fiber 27, the space in such sheath 11 is most of occupied by conductor 19, and the cross-sectional area of conducting wire is in logging cable Cross-sectional area in shared ratio be more than 50%, so can to improve unit long for the logging cable that the application embodiment provides The tensile strength of degree.

As shown in Figure 1, in the present embodiment, logging cable includes successively from outside to inside：Sheathed part, sheath 11；Armouring Portion's wrap jacket 11.On the one hand the sheathed part can improve the tensile strength of logging cable；Another aspect sheathed part can protect shield Set 11 and its inside are not damaged.

In one embodiment, two layers of sheathed part；Two layers of sheathed part is followed successively by from outside to inside：29 He of outer layer sheathed part Internal layer sheathed part 31.When sheathed part is two layers, the tensile strength of logging cable is stronger.

Specifically, outer layer sheathed part 29 is coiled by tiny steel wire carries out the twisted of multiply again after the sub-thread of first diameter, 29 wrapping inner layer sheathed part 31 of outer layer sheathed part.

In one embodiment, internal layer sheathed part 31 be coiled into after the sub-thread of second diameter by tiny steel wire carry out again it is more Stock is twisted so that 31 wrap jacket 11 of internal layer sheathed part.

In one embodiment, outer layer sheathed part 29 be coiled into after the sub-thread of first diameter by tiny steel wire carry out again it is more Stock is twisted, and the second diameter of 31 sub-thread of internal layer sheathed part is less than the first diameter of 29 sub-thread of outer layer sheathed part.

In one embodiment, the gap between outer layer sheathed part 29 and internal layer sheathed part 31 is filled with polymer 33. It so as to reduce the friction between outer layer sheathed part 29 and internal layer sheathed part 31, can prevent logging cable from breaking, improve well logging electricity The tensile strength of cable.The polymer 33 is high molecular material.Such as the material of the polymer 33 is fiber, but the polymer 33 Material is without being limited thereto, can also be other materials, such as resin.

Preferably, preventing rubber layer 35 wraps up sheathed part.So as to preventing rubber layer 35 can will inside logging cable with it is extraneous It is isolated, prevents external environment from being had an impact to logging cable inside, so as to protect the structure inside logging cable.

In the present embodiment, multiple conductors 19 and multiple optical fiber 27 are provided in sheath 11, multiple conductors 19 are along sheath 11 internal perisporium arrangement；So as to it is only capable of wearing an optical fiber 27 between the outer wall of adjacent conductor 19 and the inner wall of sheath 11.So Space in sheath 11 is most of occupied by conductor 19, and the cross-sectional area of conducting wire is shared in the cross-sectional area of logging cable Ratio be more than 50%, so the logging cable that the application embodiment provides can improve the tensile strength of unit length.

Further, multiple conductors 19 contact with each other, and the inner wall of the outer wall and sheath 11 of each conductor 19 offsets.So as to The cross-sectional area that can make each conductor 19 is maximum, so as to improve the tensile strength of each conductor 19.

Preferably, conductor 19 is 3.In this way, when 3 conductors 19 contact with each other, and the outer wall and sheath of each conductor 19 When 11 inner wall offsets, 3 conductors 19 form equilateral triangle structure, are thusly-formed 3 conductors 19 of equilateral triangle structure Cross-sectional area sum reach maximization, so as to further improve the tensile strength of logging cable.Further, optical fiber 27 is 3 It is a, and 3 optical fiber 27 form equilateral triangle structure.

Preferably, the gap between optical fiber 27, conductor 19 is filled with insulator 18, so as to fixed conductor 19 and optical fiber 27, and reduce the signal interference of mutual time.The material of the insulator 18 is epoxy resin, but the material of the insulator 18 It is without being limited thereto, it can also be other materials, such as phenolic resin, glass, ceramics etc..

Specifically, the material of sheath 11 is the adhesive tape containing 19 material of semiconductor.So as to play inside shielding and protection Effect.

In one embodiment, conductor 19 includes shielded layer 13, conductive cable core 15 successively from outside to inside, and shielded layer 13 wraps Conductive cable core 15 is wrapped up in, the gap between conductive cable core 15, shielded layer 13 is filled with insulating layer 17.Conductive cable core 15 can be more Copper conductor is twisted.The insulating layer 17 can select the arbitrary insulating materials of this field, such as polypropylene etc., the application is to this It does not define.Shielded layer 13 can select the arbitrary metal material of this field, such as lead etc., and the application does not make this It limits.

In one embodiment, optical fiber 27 includes protective layer 21,27 cable core 23 of optical fiber, protective layer 21 successively from outside to inside 27 cable core 23 of optical fiber is wrapped up, the gap between protective layer 21,27 cable core 23 of optical fiber is filled with fiber paste 25.The protective layer 21, fibre Cream 25 may be used the material that this field is applicable in and be made, and the application does not define this.

It should be noted that in the description of the present application, term " first ", " second " etc. are only used for description purpose and difference Similar object, between the two and there is no sequencings, can not be interpreted as indicating or implying relative importance.In addition, In the description of the present application, unless otherwise indicated, " multiple " are meant that two or more.

It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouch It states, many embodiments and many applications except the example provided all will be aobvious and easy for a person skilled in the art See.Therefore, the range of this introduction should not be determined with reference to foregoing description, but should with reference to preceding claims and this The four corner of equivalent that a little claims are possessed determines.For comprehensive purpose, all articles and with reference to including special The disclosure of profit application and bulletin is all by reference to being incorporated herein.Theme disclosed herein is omitted in preceding claims Any aspect is not intended to abandon the body matter, also should not be considered as applicant the theme is not thought of as it is disclosed Apply for a part for theme.

Claims (12)

1. a kind of logging cable, which is characterized in that the logging cable includes successively from outside to inside：Sheathed part, sheath；The armour Wrap up the sheath in dress portion；

Multiple conductors and multiple optical fiber are provided in the sheath, multiple conductors are arranged along the internal perisporium of the sheath；With Make to be only capable of wearing the optical fiber between the outer wall of the adjacent conductor and the inner wall of the sheath.

2. logging cable according to claim 1, it is characterised in that：Multiple conductors contact with each other, and each described The outer wall of conductor and the inner wall of the sheath offset.

3. logging cable according to claim 1, it is characterised in that：Gap filling between the optical fiber, the conductor There is insulator.

4. logging cable according to claim 3, it is characterised in that：The material of the insulator is epoxy resin.

5. logging cable according to claim 1, it is characterised in that：The material of the sheath is contains semi-conducting material Adhesive tape.

6. logging cable according to claim 1, it is characterised in that：The sheathed part is two layers；Two layers of sheathed part It is followed successively by from outside to inside：Outer layer sheathed part and internal layer sheathed part.

7. logging cable according to claim 6, it is characterised in that：The outer layer sheathed part is coiled by tiny steel wire The twisted of multiply is carried out after the sub-thread of one diameter again, the outer layer sheathed part wraps up the internal layer sheathed part.

8. logging cable according to claim 6, it is characterised in that：The internal layer sheathed part is coiled by tiny steel wire The twisted of multiply is carried out after the sub-thread of two diameters again so that the internal layer sheathed part wraps up the sheath.

9. logging cable according to claim 8, it is characterised in that：The outer layer sheathed part is coiled by tiny steel wire The twisted of multiply is carried out after the sub-thread of one diameter again, second diameter is less than first diameter.

10. logging cable according to claim 6, it is characterised in that：Between the outer layer sheathed part and internal layer sheathed part Gap be filled with polymer.

11. logging cable according to claim 10, it is characterised in that：The material of the polymer is fiber.

12. logging cable according to claim 1, which is characterized in that it includes：Preventing rubber layer, the preventing rubber Layer wraps up the sheathed part.